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conformance · v142

v142 · multicast-support-for-direct-sockets-api — conformance probe

6 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.

browser: spec: https://wicg.github.io/direct-sockets/ chromestatus: #5073740211814400 generated 2026-06-01T08:13:10Z by conformance-author-v1-subagent
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id contract kind verdict detail
udp-socket-exposed-in-iwa-only Direct Sockets is gated to Isolated Web Apps. In a normal web context the UDPSocket constructor is not exposed. script
tcp-socket-also-gated TCPSocket is similarly gated; multicast is an extension on top of the same IWA-only surface. script
secure-context Direct Sockets requires a secure context; IWAs are inherently secure. script
streams-readable-stream-supported UDPSocket exposes readable/writable as streams; ReadableStream is available so userland can consume incoming multicast datagrams. exists
writable-stream-supported UDPSocket's writable side is a WritableStream; the constructor is available for the multicast send path. exists
udp-socket-construct-throws-outside-iwa Attempting to construct UDPSocket outside an Isolated Web App throws — the gating is at construction time. throws